CN1157239A - Coach coupling assembly - Google Patents
Coach coupling assembly Download PDFInfo
- Publication number
- CN1157239A CN1157239A CN96122693.5A CN96122693A CN1157239A CN 1157239 A CN1157239 A CN 1157239A CN 96122693 A CN96122693 A CN 96122693A CN 1157239 A CN1157239 A CN 1157239A
- Authority
- CN
- China
- Prior art keywords
- bearing
- mentioned
- coupling
- hole
- cantilever
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000008878 coupling Effects 0.000 title claims abstract description 26
- 238000010168 coupling process Methods 0.000 title claims abstract description 26
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 26
- 239000007788 liquid Substances 0.000 claims description 5
- 239000013536 elastomeric material Substances 0.000 claims description 4
- 230000000295 complement effect Effects 0.000 claims description 3
- 239000000314 lubricant Substances 0.000 claims description 3
- 239000000295 fuel oil Substances 0.000 claims 1
- 238000005096 rolling process Methods 0.000 abstract description 3
- 239000012858 resilient material Substances 0.000 abstract 1
- 230000006378 damage Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 210000002583 cell-derived microparticle Anatomy 0.000 description 1
- 210000001163 endosome Anatomy 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D47/00—Motor vehicles or trailers predominantly for carrying passengers
- B62D47/02—Motor vehicles or trailers predominantly for carrying passengers for large numbers of passengers, e.g. omnibus
- B62D47/025—Motor vehicles or trailers predominantly for carrying passengers for large numbers of passengers, e.g. omnibus articulated buses with interconnecting passageway, e.g. bellows
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60D—VEHICLE CONNECTIONS
- B60D5/00—Gangways for coupled vehicles, e.g. of concertina type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D3/00—Wagons or vans
- B61D3/10—Articulated vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
- B61G5/00—Couplings for special purposes not otherwise provided for
- B61G5/02—Couplings for special purposes not otherwise provided for for coupling articulated trains, locomotives and tenders or the bogies of a vehicle; Coupling by means of a single coupling bar; Couplings preventing or limiting relative lateral movement of vehicles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Support Of The Bearing (AREA)
- Mounting Of Bearings Or Others (AREA)
- Rolling Contact Bearings (AREA)
Abstract
Coach coupling assembly for coupling together two coaches of a railbound multi-unit set of coaches has a first coupling arm fixed to one of the coaches and a second coupling arm fixed to a second one of the coaches. The first coupling arm has a vertical through-bore that houses the outer race ring of a rolling bearing. The bore in the inner race ring of the bearing receives a depending shaft journal that is fixed to the second coupling arm. An arrangement is provided to damp radial forces acting upon the coupling and to compensate for misalignment between the axes of the through-bore and the shaft journal. In this regard, the through-bore is provided with an elastic lining of resilient material, and the bearing used is an angularly self-aligning rolling bearing.
Description
The present invention relates to a kind of coach coupling assembly that the joint of two in the track multi-section vehicles group is connected together.This device comprises: first that is fixedly attached in the above-mentioned vehicle first connects cantilever 1, with be fixedly attached to above-mentioned vehicle in second second be connected cantilever 8, the through hole 2 that first cantilever 1 has a perpendicular to be provided with, lay the outer shroud of an antifriction-bearing box 5, one is fixedly connected on the outstanding shape axle journal 9 on above-mentioned second cantilever 8, be installed in the hole of bearing inner ring, provide and bear and cushion the diametral load that acts on the attaching parts, and the device that axis correction does not overlap between the axis of above-mentioned hole 2 and axle journal 9.
Cargo-carrying car has two kinds of main types as the vehicle of electrical traction vehicle, and one type is equipped with two wheel unit (wheel unit), has one at each end of vehicle.And another kind of type is a trailer, has only a wheel unit that is installed in vehicle end, and it will not be connected with another vehicle.
Vehicle afterbody linking together with a trailer has one to be fixedly coupled device, and moulding resembles an outstanding beam, and the bellmouth of a vertically disposed outstanding shape axle journal that is used for installing from above is arranged on the beam.Should outstanding shape axle journal be arranged on the outer end that does not have the outstanding cantilever that end of wheel axially stretches out from vehicle.
Outstanding shape axle journal must be installed in the hole, waits when being traveling in bend etc. and locating the angled rotation of generation in the hole with convenient electrical traction vehicle (tram train).On rigidity carrying axle journal, in traveling process, during as brake, bump and vibration can take place, this can cause being used for the rolling body of antifriction-bearing box of thrust journal and the destruction of ring rail.For fear of this destruction, the transmission of eliminating this bump, vibration etc. is necessary, and by providing elastic buffering mechanism to absorb this bump, can avoid this destruction well.
In addition, be traveling on the different level in order to allow vehicle, and bearing or connecting device are met with stresses, the possibility of to a certain degree relatively moving for this connection around imaginary horizontal shaft also is necessary.This controllability also can obtain by elastic buffering mechanism to a certain extent.
EP-A1-0 612 646 relates to an aforesaid coupling for land vehicle, and its outstanding shape thrust shaft is supported in the deep trouth ball-bearing casing.In this case, impact attenuation device is configured to an elastomeric connection, and it has a rigidity endosome, and vertical centre hole is used for admitting the thrust journal of outstanding shape on it, and it has a rigidity ectosome, and ring bearing surface in the ball-bearing casing is arranged on it.These two are rigidly connected body by the elastic shell of a dome-type separately, and these two bodies that are rigidly connected are processed to adapt with hemisphere curvature towards the elastomeric surface of shell mould.A kind of like this manufacturing costliness of connector, and its design is that part is open, so adaptor union must be protected by means of an outer gland sealing box, to avoid the influence of dust and humidity.
The purpose of this invention is to provide a kind of above-mentioned coupling for land vehicle, it is designed to a kind of like this pattern: size is little, closed, be made up of cheap standard machine part.
In order to reach the object of the invention, the coupling for land vehicle that in the track multi-section vehicles group two joint vehicle is connected together of the present invention, comprise: first that is fixedly attached in the above-mentioned vehicle first connects cantilever 1, with be fixedly attached to above-mentioned vehicle in second second be connected cantilever 8, the through hole 2 that first cantilever 1 has a perpendicular to be provided with, lay the outer shroud of an antifriction-bearing box 5, one is fixedly connected on the outstanding shape axle journal 9 on above-mentioned second cantilever 8, be installed in the hole of bearing inner ring, provide and bear and cushion the diametral load that acts on the attaching parts, and the device that axis correction does not overlap between the axis of above-mentioned hole 2 and axle journal 9, it is characterized in that: the through hole 2 on first cantilever 1 is provided the cushions 4 of an elastomeric material, 4a, used bearing is an angle self aligning antifriction-bearing box 5, this bearing 5 allows between through hole 2 and axle journal 9 axis to a certain degree not overlap, and bearing is assemblied in above-mentioned lining 4, among the 4a, be suitable for bearing and cushioning the diametral load that acts on the attaching parts whereby.
Hereinafter, specifically install with reference to the coupling for land vehicle consistent with the present invention, as shown in drawings, the section part that is presented at a connecting arm and is articulated and connected, this invention will be further described.
Fig. 1 is expression cutaway view of the present invention.
Fig. 1 shows first outstanding cantilever 1, and it is fixedly connected on first vehicle that does not demonstrate.Near first cantilever 1 free end, a round vertical perforation 2 and the coaxial flange in the bottom 3 that diameter is littler than the upper diameter in hole 2 are arranged.In hole 2, be equipped with the cushions 4 of a sleeve-like.Left hand half one at diagrammatic sketch, this lining 4 is shown as the tubular sleeve between the excircle of the circumferential inner surface that is assemblied in through hole 2 and bearing, but as this lining 4a that the right hand half one is seen, arranged to in-to-in bottom axle bush 4b one day, its rigging position is between the end face of flange 3 and bearing.
One double barrel-type roller bearing 5 is assembled, and the circumference of its outer collar bearing is assembled in the cushions 4, so the outer shroud of bearing 5 is on the flange 3 that places first cantilever 1 on the rigging position.By means of be positioned at first cantilever 1 on the coaxial ring 6 in hole 2; detachably be assemblied in screw on the cantilever and connect 7 etc.; the outer collar bearing of bearing 5 is further protected not to move up from its rigging position in elastomeric liner; as shown in the figure; above-mentioned ring has one than a little bit smaller a little endoporus of bearing 5 external diameters, thereby stops bearing rigging position from it in lining 4 to break away from the inner edge of the ring 6 of rigging position.Double barrel-type roller bearing has a coniform hole, and the minor diameter in hole is positioned at the bottom surface in hole 2 on first cantilever 1.
Second outstanding cantilever 8, it is fixedly joined to another and the vehicle afterbody that does not show, near its outer tail end, has an outstanding shape to have the tapered axle journal 9 of vertical axis.This tapered axle journal 9 has the size with the inner cone complementary dimensioned of bearing 5, and when being assembled in the internal taper hole of bearing 5, this tapered axle journal 9 can be lifted to a Zero clearance or to the position that certain pretension is arranged.After the interior ring of bearing was lifted to the internal clearance of hope, it was fixing with axle journal 9 by a circular position-arresting disk 10, and this position-arresting disk for example is connected the axle journal end with bolt 11 by the following hole in hole 2, and disk 10 radially extends the axle journal end.
Tapered axle journal 9 is further provided a shaft shoulder 12 it than butt end, and the above-mentioned shaft shoulder 12 provides a bearing surface for bearing inner ring in case it moves in a direction, and above-mentioned position-arresting disk 10 stops bearing inner ring to move in opposite direction.The big I of internal clearance waits by the pad that does not demonstrate and adjusts.
The bottom opening in hole 2 is finally covered with a shrouding disc 14, shrouding disc removably is fixed on the there, as connecting, between itself and first cantilever 1, provide a ring-like sealing arrangement, as an O type seal ring 15 is being provided on the shrouding disc or in the bottom recesses of first cantilever 1 with screw.
By sealing arrangement 13 and the shrouding disc 14 that has seal ring 15 are provided, an annular seal space 16 is provided, the common running surface of bearing and coupling for land vehicle is all sealed therein.This closed annular seal space 16 protection bearings and adaptor union part are avoided the influence of extraneous dust and humidity, and by a lubricant mouth 17, it can be better fully with the filling of liquid or semi-liquid lubrication agent.
The holes of ring can be equipped plug helix 18a and 18b (shown in the left side and the right of figure) respectively in the outside face of axle journal 9 and/or the bearing 5, and it can be connected with a pressure oil-source by a pipeline 19, so that the dismounting of adaptor union becomes more convenient when keeping in repair and maintaining.
In such a way, one failure-free, simple, the sort of coupling for land vehicle that the cost actv. begins to mention can be provided, it mainly is made up of the standard machine part, the cushions 4 of axle sleeve type bears and absorbs diametral load, when central axes at hole 2 on first cantilever 1 and the axle journal 9 on second cantilever 8, and produce when not overlapping when axis between these two axles since barrel-type roller bearing certainly to neutrality, barrel-type roller bearing provides a pulsation-free angle turning operation.
The present invention is not only limited to as shown in the figure and is described in embodiment in the method for attachment, and within the scope of the appended claims, it is possible improving and changing.Therefore, though bearing is demonstrated and is described as a double barrel-type roller bearing,, it can not exceed in the scope of the invention, has from the similar or almost similarly antifriction-bearing box replacement with barrel-type roller bearing to neutrality with other.The axle journal of second cantilever and the hole of bearing inner ring have been represented as complementary taper, though the bullet device is convenient to obtain desirable internal clearance in bearing, and carefully the axle journal end is inserted in the hole of bearing inner ring easily, but it can be installed in cylindrical journal in the cylindrical hole with one.
Claims (10)
1. coupling for land vehicle that two in track multi-section vehicles group joint vehicle is connected together, comprise: first that is fixedly attached in the above-mentioned vehicle first connects cantilever (1), with be fixedly attached to above-mentioned vehicle in second second be connected cantilever (8), the through hole (2) that first cantilever (1) has a perpendicular to be provided with, lay the outer shroud of an antifriction-bearing box (5), one is fixedly connected on the outstanding shape axle journal (9) on above-mentioned second cantilever (8), be installed in the hole of bearing inner ring, provide and bear and cushion the diametral load that acts on the attaching parts, and the device that axis correction does not overlap between the axis of above-mentioned hole (2) and axle journal (9), it is characterized in that: the through hole (2) on first cantilever (1) is provided the cushions (4 of an elastomeric material, 4a), used bearing is an angle self aligning antifriction-bearing box (5), this bearing (5) allows between through hole (2) and axle journal (9) axis to a certain degree not overlap, and bearing is assemblied in above-mentioned lining (4,4a), be suitable for bearing and cushioning the diametral load that acts on the attaching parts whereby.
2. the coupling for land vehicle described in claim 1, it is characterized in that: lining is an elastomeric material tubulose axle sleeve (4).
3. the coupling for land vehicle described in claim 1, it is characterized in that: lining is an elastomeric material axle sleeve (4a), it provides a flange that extends radially inwardly (4b) in the end of inserting through hole (2).
4. as the coupling for land vehicle described in each of above-mentioned claim, it is characterized in that: antifriction-bearing box is a double barrel-type roller bearing (5).
5. as each the described coupling for land vehicle in the above-mentioned claim, it is characterized in that: bearing (5) and adaptor union part (2,4,9) are closed in the annular seal space (16).
6. the coupling for land vehicle described in claim 5, it is characterized in that: annular seal space (16) has a fuel oil supply nozzle (17), so that inject liquid or semi-liquid lubrication agent there.
7. as each the described coupling for land vehicle in the above-mentioned claim, it is characterized in that: the axle journal (9) of second cantilever (8) and the interior annular distance of bearing (5) have complementary taper.
8. as each the described coupling for land vehicle in the above-mentioned claim, it is characterized in that: the bearing collar of bearing (5), bearing surface (3,5) and detouchable fixing and locking part (6,10) by fixing are separately fixed on first and second cantilevers (1,8).
9. as each the described coupling for land vehicle in the above-mentioned claim, it is characterized in that: the bottom surface of going up through hole (2) at first connecting arm (1) is covered hermetically with an independent removable cap (14).
10. as each the described coupling for land vehicle in the above-mentioned claim, it is characterized in that: the interior annular distance of the outside face of axle journal (9) and/or bearing (5) is furnished with a plug helix (18a, 18b), this plug helix can pass through pipeline (19) and be connected with a pressure liquid source, so that dismounting.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE9503808-9 | 1995-10-30 | ||
| SE9503808A SE9503808L (en) | 1995-10-30 | 1995-10-30 | Car coupler unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1157239A true CN1157239A (en) | 1997-08-20 |
Family
ID=20400004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96122693.5A Pending CN1157239A (en) | 1995-10-30 | 1996-10-29 | Coach coupling assembly |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US5906164A (en) |
| EP (1) | EP0771710B1 (en) |
| JP (1) | JP2891677B2 (en) |
| CN (1) | CN1157239A (en) |
| DE (1) | DE69603437T2 (en) |
| SE (1) | SE9503808L (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102343775A (en) * | 2010-07-21 | 2012-02-08 | 许布奈有限公司 | Swing bearing joint |
| CN105539490A (en) * | 2015-12-28 | 2016-05-04 | 勾长虹 | Connecting device used between railway vehicles |
| CN105682948A (en) * | 2013-09-18 | 2016-06-15 | 阿尔弗雷德·凯驰两合公司 | Articulated joint for an implement carrier vehicle and an implement carrier vehicle comprising such articulated joint |
| CN108819629A (en) * | 2018-07-05 | 2018-11-16 | *** | It is a kind of that car bracket is dragged based on industrial machinery |
| CN111169560A (en) * | 2018-11-13 | 2020-05-19 | 来临机器人有限公司 | Two-wheeled automated guided vehicle |
| CN111572654A (en) * | 2020-03-30 | 2020-08-25 | 青岛海山慧谷科技有限公司 | Multi-compartment rapid transfer self-organizing public transportation system and method |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3422926B2 (en) * | 1998-04-24 | 2003-07-07 | 近畿車輌株式会社 | Underframe structure of articulation |
| DE59900148D1 (en) * | 1999-03-19 | 2001-08-09 | Huebner Gmbh | Swivel joint arranged in the ceiling area of two articulated vehicles |
| FR2796026B1 (en) * | 1999-07-06 | 2001-09-21 | Jean Michel Ven | ROLLING RAIL EQUIPMENT, PARTICULARLY FOR THE TRANSPORT OF HEAVY VEHICLES |
| DE10153460A1 (en) * | 2001-10-30 | 2003-05-22 | Voith Turbo Scharfenberg Gmbh | Railcar or wagon coupling offers lengthways maneuvrability via destructive buffer to guard against overloading of cars and coupling forks and bolt lashing. |
| SE526057C2 (en) | 2003-09-10 | 2005-06-21 | Dellner Couplers Ab | Rail-bound trolley and linkage device for permanent coupling of two chassis included in such trolley |
| US8157450B2 (en) * | 2008-08-22 | 2012-04-17 | Baldor Electric Company | Waveform expansion sleeve for a bearing |
| DE102010046495B3 (en) * | 2010-09-24 | 2011-11-10 | Hübner GmbH | Joint of an articulated vehicle |
| GB2489021B (en) * | 2011-03-16 | 2013-08-14 | Flybrid Automotive Ltd | High speed flywheel |
| DE102014206870B4 (en) * | 2014-04-09 | 2022-09-08 | Aktiebolaget Skf | Bearing arrangement and method for its manufacture |
| US9701323B2 (en) | 2015-04-06 | 2017-07-11 | Bedloe Industries Llc | Railcar coupler |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2070081A (en) * | 1935-07-29 | 1937-02-09 | Henry Raymond | Bearing support |
| US2141122A (en) * | 1937-12-22 | 1938-12-20 | Timken Roller Bearing Co | Cushioned roller bearing |
| GB666805A (en) * | 1949-08-24 | 1952-02-20 | English Electric Co Ltd | Improvements in and relating to locomotive side rods |
| US2565759A (en) * | 1949-09-29 | 1951-08-28 | Danly Mach Specialties Inc | Flywheel bearing demounting assembly |
| US3687084A (en) * | 1969-07-17 | 1972-08-29 | Acf Ind Inc | Articulated car train |
| JPS6356313U (en) * | 1986-09-30 | 1988-04-15 | ||
| US5044785A (en) * | 1990-06-18 | 1991-09-03 | Eaton Corporation | Bearing isolator |
| JPH0429130U (en) * | 1990-06-29 | 1992-03-09 | ||
| DE9103935U1 (en) * | 1991-03-30 | 1991-06-27 | J.M. Voith Gmbh, 7920 Heidenheim | Bearing housing for a multi-row rolling bearing or for several coaxially arranged rolling bearings |
| FR2695612B1 (en) * | 1992-09-11 | 1994-10-14 | Alsthom Gec | Ball-type attachment device, in particular for railway vehicles. |
| DE4305614A1 (en) * | 1993-02-24 | 1994-08-25 | Linke Hofmann Busch | Articulated connection for the articulated connection of vehicle parts of a multi-unit rail vehicle |
| US5366299A (en) * | 1993-03-11 | 1994-11-22 | Wagner Mining And Construction Equipment Co. | Articulated vehicle and hinge assembly |
| FR2716149B1 (en) * | 1994-02-15 | 1996-03-29 | Gec Alsthom Transport Sa | Coupling joint and energy absorption method between two railway vehicles. |
| DE9420230U1 (en) * | 1994-12-21 | 1995-03-23 | AEG Schienenfahrzeuge GmbH, 90461 Nürnberg | Articulated bearings for rail vehicles |
-
1995
- 1995-10-30 SE SE9503808A patent/SE9503808L/en not_active IP Right Cessation
-
1996
- 1996-10-24 EP EP96850178A patent/EP0771710B1/en not_active Expired - Lifetime
- 1996-10-24 DE DE69603437T patent/DE69603437T2/en not_active Expired - Fee Related
- 1996-10-28 US US08/740,323 patent/US5906164A/en not_active Expired - Fee Related
- 1996-10-29 CN CN96122693.5A patent/CN1157239A/en active Pending
- 1996-10-29 JP JP8302367A patent/JP2891677B2/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102343775A (en) * | 2010-07-21 | 2012-02-08 | 许布奈有限公司 | Swing bearing joint |
| CN102343775B (en) * | 2010-07-21 | 2014-02-26 | 许布奈有限公司 | Swing bearing joint |
| CN105682948A (en) * | 2013-09-18 | 2016-06-15 | 阿尔弗雷德·凯驰两合公司 | Articulated joint for an implement carrier vehicle and an implement carrier vehicle comprising such articulated joint |
| CN105539490A (en) * | 2015-12-28 | 2016-05-04 | 勾长虹 | Connecting device used between railway vehicles |
| CN105539490B (en) * | 2015-12-28 | 2018-06-12 | 勾长虹 | For the attachment device between rail vehicle |
| CN108819629A (en) * | 2018-07-05 | 2018-11-16 | *** | It is a kind of that car bracket is dragged based on industrial machinery |
| CN111169560A (en) * | 2018-11-13 | 2020-05-19 | 来临机器人有限公司 | Two-wheeled automated guided vehicle |
| CN111169560B (en) * | 2018-11-13 | 2023-02-28 | 到达有限公司 | Two-wheeled automated guided vehicle |
| CN111572654A (en) * | 2020-03-30 | 2020-08-25 | 青岛海山慧谷科技有限公司 | Multi-compartment rapid transfer self-organizing public transportation system and method |
Also Published As
| Publication number | Publication date |
|---|---|
| US5906164A (en) | 1999-05-25 |
| JP2891677B2 (en) | 1999-05-17 |
| SE504051C2 (en) | 1996-10-28 |
| DE69603437D1 (en) | 1999-09-02 |
| SE9503808D0 (en) | 1995-10-30 |
| DE69603437T2 (en) | 2000-01-13 |
| EP0771710A1 (en) | 1997-05-07 |
| SE9503808L (en) | 1996-10-28 |
| JPH09164950A (en) | 1997-06-24 |
| EP0771710B1 (en) | 1999-07-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |